function centerWindow(url, name, width, height) {
	var top  = (screen.height - height)/2;
	var left = (screen.width - width)/2;
	var win  = window.open(url, name,
		" top = " + top + ", left = " + left +
		", width = " + width + ", height = " + height +
		", " + " scrollbars = no, " +
		"resizable = no");
}

/* Returns the current page's file name */
function getCurrentPage() {
	var path = window.location.pathname;
   var page = path.substring(path.lastIndexOf('/') + 1);
   return page;
}

/* Returns the directory this file is in */
function getDirectory() {
	var current = window.location.href;
	var parent  = current.split("/");
	delete parent[(parent.length - 1)];
	var location = parent.join("/");
	return location;
}

/* Handles recirections */
function handleRedirect(url, ms) {
	self.setTimeout("window.location.href = '" + url + "';", ms);
}

/* Redirects to the specified page */
function navigateToURL(url) {
	if(getCurrentPage() != url) {
		window.location.href = url;
   }
}

function checkContactForm() {

  	var form = document.forms['contact_form'];
  	var nom = form['nom'];
  	var adresse = form['adresse'];
  	var telephone = form['telephone'];
  	var email = form['email'];
  	var message = form['message'];
	var errors = '';


	if(isEmpty(nom.value) != '') {
		errors += isEmpty(nom.value);
		document.getElementById('nomError').innerHTML = isEmpty(nom.value);
	}
	else {
		document.getElementById('nomError').innerHTML = '';
	}

  	if(validatePhone(telephone.value) != '') {
		errors += validatePhone(telephone.value);
		document.getElementById('telephoneError').innerHTML = validatePhone(telephone.value);
	}
	else {
		document.getElementById('telephoneError').innerHTML = '';
	}

  	if(validateEmail(email.value) != '') {
		errors += validateEmail(email.value);
		document.getElementById('emailError').innerHTML = validateEmail(email.value);
	}
	else {
		document.getElementById('emailError').innerHTML = '';
	}

  	if(errors != '' ) {
    	document.getElementById('notice').innerHTML =
			"Merci de corriger les erreurs avant de soumettre votre demande.";
  	}
  	else {
    	document.getElementById('notice').innerHTML = '';
		form.style.display = "none";

		new Ajax.Request('sendmail.php', {
			method: 'post',
		  	parameters: {
				nom:          nom.value,
				adresse:      adresse.value,
				telephone:    telephone.value,
				email:        email.value,
				message:      message.value
		  	},
		  	onComplete: function(transport) {
				if(transport.status == 200) {
			  		document.getElementById('notice').innerHTML = transport.responseText;

				}
		  	},
		  	onFailure: function(){
				alert('Une erreure est survenue, merci de reesayer')
			}
		});
	}
}

function blinkText() {
	if (!document.all)
		return;
 	else {
   		for(i = 0; i < document.all.tags("blink").length; i++){
      		s = document.all.tags("blink")[i];
      		s.style.visibility = (s.style.visibility == "visible")? "hidden" : "visible";
   		}
 	}
}

function showImage(url) {
	if(myLightWindow != null) {
		myLightWindow.activateWindow({
			href: url,
			width: 640,
			height: 480,
			title: 'Celsius'
		});
	}
}